[PATCH] mptsas: fix dma alignment

[Vitaly Bordug <vitb@kernel.crashing.org>]

From: Yuri Tikhonov <yur@emcraft.com>

fusion mptsas: fix dma alignment

     Since the 465ff.. commit from James Bottomley relaxes the default
     SCSI DMA alignment from 512 bytes to 4 bytes, then, in the mptsas
     driver, we should explicitly set the alignment to the workable
     512 bytes value.

    Signed-off-by: Ilya Yanok <yanok@emcraft.com>
    Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
    Signed-off-by: Sergei Poselenov <sposelenov@emcraft.com>
    Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org>
---

 drivers/message/fusion/mptsas.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)


diff --git a/drivers/message/fusion/mptsas.c
b/drivers/message/fusion/mptsas.c index 55ff252..2334f26 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -1843,6 +1843,7 @@ mptsas_slave_alloc(struct scsi_device *sdev)
 	return -ENXIO;
 
  out:
+	blk_queue_update_dma_alignment(sdev->request_queue, 511);
 	vdevice->vtarget->num_luns++;
 	sdev->hostdata = vdevice;
 	return 0;